Am Dienstag, 27. Januar 2004 14:26 schrieb GEORGE JOSEPH: > Hi All, > > I have a project To port and MP3 Decoder,TCP/IP > Stack in UC/OSII Linux Kernel 2.0.38 to an ARM Board ^^^ Do you mean uClinux? Then the following site might be a good reference for you: http://www.uclinux.org > 1)What is porting Code and how do I do it. Porting code simply means that you take code which already runs on another architecture i.e x86, and alter it, so that it runs on your ARM-Board. Perhaps the uClinux-Site might be a good start as well. > 3)How do u compress the OS to fit onto the Board > FLASH. I played around with an ARM-Board during my studies also using uClinux. First you will need a compiler that runs on your host machine, but produces code suitable for ARM. This compiler should be part of the uClinux-Distribution. It also includes a program to convert elf binarys into the under uClinux typical binary flat format (it's called elf2flt). This will be importing especially for running your own code on uClinux. Regarding the kernel you should configure only the options you need for your board. That would not be quite much. The gcc has furthermore an option to optimize for size and for your special arm-architecture (see man gcc for details). 3 megs should be enough, uClinux also includes a so called "busy box" which is installed along with the kernel and provides basic UNIX commands for administration. You will also be able to add your own commands to this system. IMHO the gcc options I mentioned should already be enabled in the uClinux kernel Makefiles, so that you need not care about them during kernel compile, but they are importing for compiling your own code for ARM. I hope these informations regarding uClinux and ARM are useful for your project. Perhaps I could also help, if you have further questions about this topic. Best Regards, Marc Hinrichs -- www.marcfuffzig.de www.marchinrichs.de -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
